GLSLANG_REVISION in revision.h reports previous tag name, which makes it appear out of date

It says SPIRV99.1401
See https://github.com/KhronosGroup/glslang/blob/master/glslang/Include/revision.h#L5

I'm not relying on it, so it's not urgent for me.

Start by reading glslang/Include/revision.h at the referenced line and compare GLSLANG_REVISION with the current project tag or revision metadata. Confirm the reported value is no longer the previous tag name, then verify the header remains consistent with the repository's version information.

Written by the indexing model from the issue text.